Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide : 11:57 pm (0.7 ft)
Next high tide : in 2h 53m at 5:24 pm (6.7 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:23 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Apr 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:106.67:386.81:130.51:330.47:147:44Waxing Gibbous1Wed
2Thu7:526.88:167.01:570.32:110.37:137:45Full Moon2Thu
3Fri8:306.88:517.12:380.12:460.27:117:45Full Moon3Fri
4Sat9:066.89:237.23:160.03:200.17:107:46Full Moon4Sat
5Sun9:406.79:547.23:510.03:520.17:097:47Full Moon5Sun
6Mon10:146.610:267.14:260.14:250.17:087:47Waning Gibbous6Mon
7Tue10:496.511:027.15:010.24:590.27:067:48Waning Gibbous7Tue
8Wed11:286.411:437.15:390.35:370.37:057:49Waning Gibbous8Wed
9Thu12:136.36:210.56:210.57:047:49Waning Gibbous9Thu
10Fri12:327.01:046.27:110.77:140.67:037:50Third Quarter10Fri
11Sat1:266.92:026.38:110.78:180.77:027:51Third Quarter11Sat
12Sun2:286.93:046.49:180.79:310.67:017:51Third Quarter12Sun
13Mon3:356.94:116.710:250.410:430.46:597:52Third Quarter13Mon
14Tue4:457.15:197.111:270.111:510.06:587:53Waning Crescent14Tue
15Wed5:527.36:217.612:26-0.46:577:53Waning Crescent15Wed
16Thu6:537.67:188.112:55-0.41:22-0.86:567:54Waning Crescent16Thu
17Fri7:487.88:118.51:54-0.72:15-1.16:557:55New Moon17Fri
18Sat8:407.89:018.72:49-1.03:05-1.26:547:55New Moon18Sat
19Sun9:317.79:518.73:41-1.13:53-1.26:537:56New Moon19Sun
20Mon10:227.510:418.44:30-0.94:40-0.96:517:57Waxing Crescent20Mon
21Tue11:137.211:318.05:18-0.65:26-0.56:507:57Waxing Crescent21Tue
22Wed12:056.86:07-0.26:140.06:497:58Waxing Crescent22Wed
23Thu12:227.612:586.56:570.37:050.56:487:59Waxing Crescent23Thu
24Fri1:147.21:526.27:510.78:010.96:477:59First Quarter24Fri
25Sat2:066.82:466.18:471.09:011.26:468:00First Quarter25Sat
26Sun2:596.53:416.09:421.110:001.26:458:01First Quarter26Sun
27Mon3:546.34:366.110:331.110:561.26:448:01First Quarter27Mon
28Tue4:496.35:296.311:201.011:481.06:438:02Waxing Gibbous28Tue
29Wed5:426.36:186.612:050.86:428:03Waxing Gibbous29Wed
30Thu6:316.47:026.912:370.812:470.66:418:03Waxing Gibbous30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8677344)

Common Questions About St. Simons Island, GA Tides

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What time does the tide turn (slack tide) in St. Simons Island, GA today?

Slack tide in St. Simons Island, GA is approximately 8:40 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in St. Simons Island, GA?

St. Simons Island, GA is currently in a transitional phase. Tonight's moon is 76% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are St. Simons Island, GA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for St. Simons Island, GA?

Tide predictions for St. Simons Island, GA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for St. Simons Island, GA?

Tide data for St. Simons Island, GA is sourced from NOAA Station #8677344. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8677344.

What is the moon phase in St. Simons Island, GA tonight?

Tonight the moon over St. Simons Island, GA is Waxing Gibbous (76% illuminated). This places St. Simons Island, GA in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA